Mississippi River and tributaries. Hearing[s] before the Committee on Rivers and Harbors, House of Representatives, Seventy-fourth Congress, first session, on H.R. 3647, a bill to authorize the secretary of war, upon the recommendation of the chief of engineers, to adjust, settle, and pay claims of drainage districts and levee districts for damages on account of increased seepage, and/or increased cost of drainage resulting from certain improvements on the Mississippi River and its tributaries. April 10, 1934.